Is summer heat protection in new buildings *mandatory*?

Even if it were not required, which I didn’t even know
How can anyone come up with the idea to want to save money precisely on this point?
Yes, it is hot in the South too and people somehow sleep as well. But nice is different.

In the south, people usually have some kind of thermal insulation. Always have. The aforementioned wooden shutters are a typical sight.

Right.. or large veranda.

Use external electric shutters, then there's none of those nasty hand straps and it also doesn't get dirty when something needs to be repaired.

I also strongly recommend electric roller shutters. Actually, everything has already been said. We also have the revisions on the outside, in case something happens.

In addition, [Rollläden] create a much more pleasant feeling of well-being. When necessary, they protect against prying eyes; the kids are sure to be happy when they have to go to bed during the summer months and the room is nice and dark.

You have protection and maybe a better feeling while you are on vacation, don’t you?

By the way, I also don't find roller shutter belts attractive, but there are also crank handles. In my opinion, you can easily save on electric operation if you want or have to. Modern crank handles are very smooth, which I can regularly see/feel in a German terraced house – and they really are not suspected of using the most expensive luxury materials.